<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>add user</title>
</head>
<body>
<form th:action="@{/user/addUser}" method="post">
    <input type="text" name="username"><br>
    <input type="text" name="usercode"><br>
    <input type="submit" value="ok">
</form>
</body>
</html>